tree 9e8f280123de0872b7355c1b025ccbb0906ff5aa
parent b64933a5021ee9666388b781b542f11ef7665673
author Shawn Willden <swillden@google.com> 1510268379 -0700
committer Shawn Willden <swillden@google.com> 1510268738 -0700

Break vold dependency on keystore utilities.

This is temporary.  Keystore is in the process of being upgraded to use
the new Keymaster 4.0 HAL, and I want to leave vold alone, using
Keymaster 3.0 for the moment.  This CL just copies relevant bits of
keystore support utilities into vold, so it can stop depending on the
copies from keystore.

After the keystore update is complete, vold will be changed either to
use Keymaster 4.0 or -- more likely -- to use keystore rather than
talking to Keymaster directly.  At that point the files added by this CL
will be deleted.

Test: Device boots and successfully decrypts /data
Change-Id: I73f6d4cc4c5e20d89d7ac37d29d025bf279f9e12